Maleimide PEG Amine, MW 3,500 TFA Salt serves as a polyPEG reagent comprised of a maleimide to react with cysteines and an amine to react with carboxylic acids in the presence of activators such as HATU. The 3.5k polyPEG units improve the water solubility of the compound. Reagent grade, for research use only.
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